refactor(a11y): improve condition checks in accessibility rules for clarity

Author: PhilDaiguille

src/Rules/Aria/AriaErrorMessageIdExistsRule.php

@@ -33,6 +33,7 @@ public function evaluate(Tokens $tokens, int $tokenIndex, callable $emit): void
             if ('' === $refId) {
                 continue;
             }
+
             if (isset($ids[$refId])) {
                 continue;
             }

src/Rules/Forms/InvalidFieldErrorMessageRule.php

@@ -51,9 +51,11 @@ public function evaluate(Tokens $tokens, int $tokenIndex, callable $emit): void
             if (!$this->isSupportedField($tagName, $tag)) {
                 continue;
             }
+
             if ($this->hasNonEmptyReference($tag, 'aria-describedby')) {
                 continue;
             }
+
             if ($this->hasNonEmptyReference($tag, 'aria-errormessage')) {
                 continue;
             }

src/Rules/Forms/RadioGroupAccessibleNameRule.php

@@ -58,9 +58,11 @@ public function evaluate(Tokens $tokens, int $tokenIndex, callable $emit): void
             if ($radioCount < 2) {
                 continue;
             }
+
             if ($this->hasNonEmptyReference($groupBlock, 'aria-labelledby')) {
                 continue;
             }
+
             if ($this->hasNonEmptyReference($groupBlock, 'aria-label')) {
                 continue;
             }

src/Rules/Forms/RadioGroupStructureRule.php

@@ -42,9 +42,11 @@ public function evaluate(Tokens $tokens, int $tokenIndex, callable $emit): void
             if (count($items) < 2) {
                 continue;
             }
+
             if ($this->isInsideFieldsetGroup($full, $name)) {
                 continue;
             }
+
             if ($this->isInsideAriaRadioGroup($full, $name)) {
                 continue;
             }